<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <style>
    /* 圣杯 */
    html, body, .container {
      height: 100%;
      margin: 0;
    }
    .container {
      margin: 0 200px 0 150px;
    }
    .container .common {
      height: 100%;
      float: left;
    }
    .container .middle {
      background: orangered;
      width: 100%;
    }
    .container .left {
      position: relative;
      /* margin-left: -150px; */
      left: -150px;
      margin-left: -100%;
      background: skyblue;
      width: 150px;
    } 
    .container .right {
      position: relative;
      background: orange;
      width: 200px;
      margin-left: -200px;
      right: -200px;
    }
  </style>
</head>
<body>
  <div class="container">
    <div class="common middle">m</div>
    <div class="common left">l</div>
    <div class="common right">r</div>
  </div>

  <script type="text/javascript">

  </script>
</body>
</html>